reflections

If there aren't any, are there any papers/links to information about reflecting with different shapes and how they may affect different sound properties? (ie. frequency response, off-axis measurements, etc.)

Er, actually, this thread should probably be in the psychoacoustics area. Can a mod move it? Introduction and observation: Following the fairly well received post on the relationship between group delay and spatial effects in headphones, I thought I'd start a new thread on the matter, gathering...

By Paul Hales of PHC. Lots of commonality with other experts in the field.